n = int(input())

if (n>=400 and n<=599):
    print("8 ")
elif (n>=600 and n<=799):
    print("7 ")
elif (n>=800 and n<=999):
    print("6 ")
elif (n>=1000 and n<=1199):
    print("5 ")
elif (n>=1200 and n<=1399):
    print("4 ")
elif (n>=1400 and n<=1599):
    print("3 ")
elif (n>=1600 and n<=1799):
    print("2 ")
elif (n>=1800 and n<=1999):
    print("1") n = int(input()) n int(input()) int input() input if (n>=400 and n<=599):
    print("8 ")
elif (n>=600 and n<=799):
    print("7 ")
elif (n>=800 and n<=999):
    print("6 ")
elif (n>=1000 and n<=1199):
    print("5 ")
elif (n>=1200 and n<=1399):
    print("4 ")
elif (n>=1400 and n<=1599):
    print("3 ")
elif (n>=1600 and n<=1799):
    print("2 ")
elif (n>=1800 and n<=1999):
    print("1") n>=400 and n<=599 n>=400 n 400 n<=599 n 599 print("8 ") print "8 " elif (n>=600 and n<=799):
    print("7 ") n>=600 and n<=799 n>=600 n 600 n<=799 n 799 print("7 ") print "7 " elif (n>=800 and n<=999):
    print("6 ") n>=800 and n<=999 n>=800 n 800 n<=999 n 999 print("6 ") print "6 " elif (n>=1000 and n<=1199):
    print("5 ") n>=1000 and n<=1199 n>=1000 n 1000 n<=1199 n 1199 print("5 ") print "5 " elif (n>=1200 and n<=1399):
    print("4 ") n>=1200 and n<=1399 n>=1200 n 1200 n<=1399 n 1399 print("4 ") print "4 " elif (n>=1400 and n<=1599):
    print("3 ") n>=1400 and n<=1599 n>=1400 n 1400 n<=1599 n 1599 print("3 ") print "3 " elif (n>=1600 and n<=1799):
    print("2 ") n>=1600 and n<=1799 n>=1600 n 1600 n<=1799 n 1799 print("2 ") print "2 " elif (n>=1800 and n<=1999):
    print("1") n>=1800 and n<=1999 n>=1800 n 1800 n<=1999 n 1999 print("1") print "1" n = int(input()) int(input()) n
n = int(input())

if (n>=400 and n<=599):
    print("8 ")
elif (n>=600 and n<=799):
    print("7 ")
elif (n>=800 and n<=999):
    print("6 ")
elif (n>=1000 and n<=1199):
    print("5 ")
elif (n>=1200 and n<=1399):
    print("4 ")
elif (n>=1400 and n<=1599):
    print("3 ")
elif (n>=1600 and n<=1799):
    print("2 ")
elif (n>=1800 and n<=1999):
    print("1")
